package com.yuandengta.yomall.product.exception;


import com.yuandengta.common.exception.BizCode;
import com.yuandengta.common.utils.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.MethodArgumentNotValidException;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.RestControllerAdvice;

import java.util.HashMap;
import java.util.Map;

/**
 * Controller 异常统一处理类 {@link ControllerExceptionHandler}
 *
 */
@Slf4j
@RestControllerAdvice(basePackages = "com.yuandengta.yomall.product.controller")
public class ControllerExceptionHandler {

    /**
     * 处理数据校验异常
     * @param e
     * @return
     */
    @ExceptionHandler(MethodArgumentNotValidException.class)
    public R handleValidException(MethodArgumentNotValidException e){
        log.error("数据校验出现问题：{}，异常类型：{}", e.getMessage(), e.getClass());

        BindingResult bindingResult = e.getBindingResult();
        Map<String, String> errMap = new HashMap<>();
        bindingResult.getFieldErrors().forEach(fieldError -> {
            errMap.put(fieldError.getField(), fieldError.getDefaultMessage());
        });

        return R.error(
                BizCode.VALID_EXCEPTION.getCode(),
                BizCode.VALID_EXCEPTION.getMessage())
                .put("data", errMap);
    }

    /**
     * 处理 Handle 其它异常
     * @param e
     * @return
     */
    @ExceptionHandler(Exception.class)
    public R handleException (Exception e) {
        e.printStackTrace();
        return R.error(BizCode.UNKNOWN_EXCEPTION.getCode(), BizCode.UNKNOWN_EXCEPTION.getMessage());
    }
}
